Criterion was unable to renew the rights to several titles, and they are having a sale of these titles on their website until the copies are gone. Just FYI. Read more here.

EDIT: A quick mod note--I made the name tags uniform, so that all are firstname lastname, or in the case of someone known primarily by initials, initials lastname. You get the picture. FYI in case you go to use a tag (for, say, Murnau) and can't find it at first. It's still there!